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ID = 21570
Tube type:  Triode, vacuum   Power-supply 
Identical to 9ED4 = PD500
First year 1966 Tube leaflet collection E.Erb Analysis by original leaflets

Base Magnoval (9-Pins), B9D
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)

Regelbare Hochspannungslast in Farbfernsehgeräten.

Tube prices 1 Tube prices (visible for members only)

mn21_g.gif 9ED4: RTT Schwandt
Günther Stabe † 19.8.20

Just Qvigstad

Collection of



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